22221030121012 has 12 divisors (see below), whose sum is σ = 38901242687076. Its totient is φ = 11106389353280.

The previous prime is 22221030120997. The next prime is 22221030121061. The reversal of 22221030121012 is 21012103012222.

It can be written as a sum of positive squares in 2 ways, for example, as 17593041692836 + 4627988428176 = 4194406^2 + 2151276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031414689 + ... + 1031436232.

It is an arithmetic number, because the mean of its divisors is an integer number (3241770223923).

Almost surely, 2^{22221030121012} is an apocalyptic number.

It is an amenable number.

22221030121012 is a deficient number, since it is larger than the sum of its proper divisors (16680212566064).

22221030121012 is a wasteful number, since it uses less digits than its factorization.

22221030121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062853618 (or 2062853616 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22221030121012 its reverse (21012103012222), we get a palindrome (43233133133234).

The spelling of 22221030121012 in words is "twenty-two trillion, two hundred twenty-one billion, thirty million, one hundred twenty-one thousand, twelve".